50 HeatInserts M3x5

M3 heatinsert.
Fixing a screw in your printed piece?
Make a 4mm hole and melt the heatinsert into the piece with your soldering iron.
Dimensions:
- Thread inside : M3
- Outside diameter knurled side: 5mm
- Outer diameter smooth side (= diameter initial hole) : 4mm
- Tube length of the heat insert : 5mm

1 package contains 50 heat inserts